I use my headphones a lot and after several hours of wearing them, my ears and the skin around them feel greasy and dirty. When used for a very long time, it sometimes causes a burning sensation. I've tried regularly wiping the area clean but that doesn't help.
I suspect that the cause is the embouchure's which are made of a skin-like material and don't let air through, resulting in the skin getting sweaty like that.
How can I remove or decrease this negative effect while retaining the sound quality of headphones?